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US3280806A Expired / Lapsed US ⏱️ 0.0 years remaining

Helper spring for valve actuating mechanism

Assignee: Individual
•
Filing: 1964-12-08
•
Granted: 1966-10-25
•
Expires: 1984-12-08
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Abstract

No abstract record available.

Inventors

  • 👤 Iskenderian Edward

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 20:18
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/46; F01L1/12; F01L1/18; F01L1/181; F01L1/182; F01L1/183; F02; F02B; F02B2275/00; F02B2275/34

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 270 words
IN COMBINATION WITH AN INTERNAL COMBUSTION ENGINE HAVING AN OVERHEAD VALVE MECHANISM THAT INCLUDES A PLUHAVING AN OVERHEAD VALVE MECHANISM THAT INCLUDES A PLUA PLURALITY OF PUSH RODS AS A CAM SHAFT FORMING A PART OF SAID ENGINE ROTATES, A PLURALITY OF HELPER SPRINGS WHICH AT ALL TIMES TEND TO MOVE SAID ROCKER ARMS INTO POSITIONS WHERE SAID PUSH RODS WILL BE ACTUATED BY SAID CAM SHAFT, WITH SAID ENGINE ALSO INCLUDING A PLURALITY OF VALVES, THE STEMS OF WHICH ARE SLIDABLY MOUNTED ON THE UPPER ENDS OF ABOVE THE HEAD OF SAID ENGINE, A PLURALITY OF COMPRESSED HELICAL SPRINGS ENCIRCLING PORTIONS OF SAID GUIDES AND STEMS, AND A PLURALITY OF RETAINERS MOUNTED ON THE UPPER ENDS OF SAID STEMS AGAINST WHICH THE UPPER ENDS OF SAID HELICAL SPRINGS ABUT, WITH EACH OF SAID HELPER SPRINGS COMPRISING: (A) A BASE PLATE HAVING AN OPENING FORMED THEREIN THROUGH WHICH THE UPPER PORTION OF ONE OF SAID GUIDES EXTENDS, SAID PLATE RESING ON THE UPPER SURFACE OF SAID HEAD, WITH THE LOWER END OF ONE OF SAID COMPRESSED HELICAL SPRINGS BEING IN ABUTTING CONTACT WITH THE UPPER SURFACE OF SAID PLATE; (B) A SPRING IN THE FORM OF A BAIL THAT DEFINES A CROSS PIECE WHICH IS REMOVABLY ENGAGED WITH AN END PORTION OF ONE OF SAID ROCKER ARMS AND AT ALL TIMES EXERTS A FORCE ON SAID ROCKER ARM IN A DIRECTION TO MAINTAIN THE PUSH ROD ASSOCIATED WITH SAID ROCKER ARM IN A POSITION TO BE ACTUATED AS SAID CAM SHAFT ROTATES, WHICH SPRING DEFINES TWO LATERALLY SPACED LEGS THAT ARE CONNECTED TO SAID PLATE TO SUPPORT SAID SPRING THEREFROM
Claim 2
Dependent Claim 270 words
IN COMBINATION WITH AN INTERNAL COMBUSTION ENGINE HAVING AN OVERHEAD VALVE MECHANISM THAT INCLUDES A PLUHAVING AN OVERHEAD VALVE MECHANISM THAT INCLUDES A PLUA PLURALITY OF PUSH RODS AS A CAM SHAFT FORMING A PART OF SAID ENGINE ROTATES, A PLURALITY OF HELPER SPRINGS WHICH AT ALL TIMES TEND TO MOVE SAID ROCKER ARMS INTO POSITIONS WHERE SAID PUSH RODS WILL BE ACTUATED BY SAID CAM SHAFT, WITH SAID ENGINE ALSO INCLUDING A PLURALITY OF VALVES, THE STEMS OF WHICH ARE SLIDABLY MOUNTED ON THE UPPER ENDS OF ABOVE THE HEAD OF SAID ENGINE, A PLURALITY OF COMPRESSED HELICAL SPRINGS ENCIRCLING PORTIONS OF SAID GUIDES AND STEMS, AND A PLURALITY OF RETAINERS MOUNTED ON THE UPPER ENDS OF SAID STEMS AGAINST WHICH THE UPPER ENDS OF SAID HELICAL SPRINGS ABUT, WITH EACH OF SAID HELPER SPRINGS COMPRISING: (A) A BASE PLATE HAVING AN OPENING FORMED THEREIN THROUGH WHICH THE UPPER PORTION OF ONE OF SAID GUIDES EXTENDS, SAID PLATE RESING ON THE UPPER SURFACE OF SAID HEAD, WITH THE LOWER END OF ONE OF SAID COMPRESSED HELICAL SPRINGS BEING IN ABUTTING CONTACT WITH THE UPPER SURFACE OF SAID PLATE; (B) A SPRING IN THE FORM OF A BAIL THAT DEFINES A CROSS PIECE WHICH IS REMOVABLY ENGAGED WITH AN END PORTION OF ONE OF SAID ROCKER ARMS AND AT ALL TIMES EXERTS A FORCE ON SAID ROCKER ARM IN A DIRECTION TO MAINTAIN THE PUSH ROD ASSOCIATED WITH SAID ROCKER ARM IN A POSITION TO BE ACTUATED AS SAID CAM SHAFT ROTATES, WHICH SPRING DEFINES TWO LATERALLY SPACED LEGS THAT ARE CONNECTED TO SAID PLATE TO SUPPORT SAID SPRING THEREFROM

References Cited (Backward Citations)

US1410771A Cited
US1475557A Cited
US1728149A Cited
US2527604A Cited
US2619946A Cited
US3139872A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-10-24 1970-04-25 1970-10-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-10-24 1974-04-25 1974-10-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-10-24 1978-04-25 1978-10-25 $7700.00 Window Closed / Lapsed

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